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Note 7 - Borrowed Funds (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Feb. 28, 2024
Proceeds from Short-Term Debt		$ 0	$ (95,625)
Securities available for sale, at fair value		391,718		$ 389,243
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available		31,700
Residential Mortgage Segment [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged		54,700
US Treasury Securities [Member]
Investment Owned, Face Amount		5,000
Overdraft Line Of Credit Expiring February 28, 2025 [Member]
Federal Home Loan Bank Overdraft, Line of Credit					$ 10,000
Federal Home Loan Bank, Overdraft, Line Of Credit, Borrowings Outstanding		0		0
Federal Reserve Bank Advances [Member]
Proceeds from Short-Term Debt	$ 33,600
Debt Instrument, Interest Rate, Stated Percentage	4.85%
Debt Instrument, Term	1 year
Short-Term Debt		0		$ 0
Federal Reserve Bank Advances [Member] | Asset Pledged as Collateral [Member] | Discount Window [Member]
Securities available for sale, at fair value		$ 16,700

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